66375614 has 8 divisors (see below), whose sum is σ = 99609600. Its totient is φ = 33172416.

The previous prime is 66375613. The next prime is 66375623. The reversal of 66375614 is 41657366.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66375613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1214 + ... + 11585.

It is an arithmetic number, because the mean of its divisors is an integer number (12451200).

Almost surely, 2^66375614 is an apocalyptic number.

66375614 is a deficient number, since it is larger than the sum of its proper divisors (33233986).

66375614 is a wasteful number, since it uses less digits than its factorization.

66375614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15394.

The product of its digits is 90720, while the sum is 38.

The square root of 66375614 is about 8147.1230505007. The cubic root of 66375614 is about 404.8891918570.

The spelling of 66375614 in words is "sixty-six million, three hundred seventy-five thousand, six hundred fourteen".